Roller bearing



" May 20, 1924.

F. D. SHELDON ROLLER BEARING Original Filed April 19. 1918 2 Shee!.sSheet 1' E &

May 20, 1924. 1,494,638

F. D. SHELDON ROLLER BEARING Original Filed April 19. 1918 2 Sheets-Sheet 2 %.1 0. Jazz Patented May 20, 1924.

UNITED oFiFicE.

FRANK D. enemas, or dI-ncmdo, iss'ifioi "r6 L. ocoNNELL, or

embrace,

To all 201 10272. it imiy cancer-n:

Be it known that I, FRANK D. Sin-smelt,

a citizen of the United States, residingit Chicago, in the 'county'o'f Cook and 'Stete 6f 6 Illinois have invented certain new :ind useful Improvements in' RblleeB-earings, of which the followi'g is'a'sp cifi esien;

My invention relates to snti frictieii beeririgs; and more 'paitictihirl-y Ito betiTi'i i'" of the type in which rollers of d ifi'erezit fiftieters are confined between thence-rings.

One object is to prcvide an impreved bearing of this character capable at being readily assembled, the race rjng's otf which may consist of scil'i'd undivided ennnfi without lateral filling notch-es, or at least with- Qllt notches of such chiiiecter'as' to' interrupt the continuity efftlie effective thrust-sustening shciflders-ef tlheraee ways, v

A further abject is to p roviaeen .eificient bearing adapted to service under; high speed conditions itnd one of relelfii'vely simpleend 'colnmercielly practice-me eensnuctiori; also to minimize cicntliti ons'coiitri'huting to i'rietion and to obta'ih certain other advantages.

The invention will be described with reference to the annexed (:lreuivi ng's'and jiartilcib larl'y pointed out in the clamis.

Referring to the drawings:

Figure 1' is a side'elevation of a roller bearing embodyi'ngmy inventicn.

Figure 2 is a cross section of thee nine. Figure 3 is a side View il lusiirating the first step'in theiict of assembling-orthedh st step in the act of taking the bearing fifj'aiit.

Figure 4 is a cross section through the race rings with a side view of men? the small rollers about to be inserted, and shewing the latter after insertionin dotted lines.

Figure 5 is a similar view'sh'owing magparablepin ahoutto be inserted ti) eompl te the act of assembling.

. Figurefi is a diagrammaticview ofsi ment of the bearing, With proportions-ma gc'ra'tetl, illustrating the step prececling the insertion of the last roller.

Figure 7 is a similar View illustrating the insertion of the last roller.

Figure 8 is a similar View illustratingt-he last act of assemhling.

Figures 9 and 10 are detailed views of a sepnrableroller shell and core.

In the drawings numerals l and 2 desighate :1 pair of concentric rings or annhli,

,i e fi' i he 'pusfied tiut rentlwise through the annular thrc tone aueeaer'nl er' trenniense, which bear on the fienges 6- er the-cuter rin these being the @1137 Frtsdn slitli'hg contact, and the ilitermy :ite enlar ed boaies of the rollers are in melting cdi'i'iiahtwith the adj-scent rb'llers and mime}! eiii' sliotiltlrs fa; ieteml retention Fey same ilin i6; 'Ijhe eriesbeitig sufli menu-wisest m -11min the relation' stated, "it is otivlbds that the rollers a e positively meme with-maria Hey the rings; I

P one er niereef the smell-toilets, however. hais" e xre1n6ve'ble' eor 1:0 constituting its trunnions. This core can be pushed out zehdwise to erniit'the shell 1 1 of that roller to -t1'isp 'eed rtid islly outward, or toweed tlimtmck fi oln which it is withheld, to lessen thejisenies {eff toilets 'as a whole and m ennit the'other small rollers to he '1 min the miter ring sufficiently to space betweenthe side wcills df lhearings; or said callers are (of greater diameter ihen thewideh'of mid' space, to be pushed out He smali' notch or depression 12 in H fiche :flen s of the inner annulus. Whether smlhiniinotchiisineetled is entirely a i-mntter ofifisignfdepfending obiriously upon ithexmuleitiv lgsroiicrtio'riingof the rings, flangesflnds till rollers. The notch is inconsiderable as compared with a common Ifilliii iifmthgw'ncr does it interrupt the continu of *the efl'ective thrust sustaining 'ihmfl rs hr flanges of the rings, even tltoixghgaismwpbe possilile under some conditions, it werdeiier than shown.

all of 'thmsmall rollers have been itlilisireinovedgitiie large rollers may be assemhIedJin-imnbet with each'cther, as indi- "eittedlin :8, after which the inner a The roller 4 two, though rarely as des1red.

-' ofdesign and 'dependswupom the ring thelargerolh be'ng, preferably theja ash and 6 and the coacting end of such ais m er m di z s ieit e iie hi efilfi m 5 w d ge-lml li r r im procedure or some equivalent or analogous method in disorganizing the bearing and the converse thereof in massemhlih J By the reverse operation the bea rfifgmufy be assembled, the roller shell hav the removable core being inserted and'iiisp diced radially eferet ha este the r heriaeall rollers, and the ast operation being the .insertt n of t e qvab ei a eie .t etsheliai e tit the sh l ,iermairadially linwa ki g p t w t l rence aadlemw ng or t gh ng he er es: 9f; elt-ere; andtwh n in place it prevents lzadial displacemeut of said shell sufficient to loosen the; seniea-thus constitutin a locking means 1 9 :maintain ea mb yai -g:",-;i;- 1;i

The method of assembling, after having P t eather; the l rge r ll s endnner' r as l erein efer ncl n eamsrdiegramma 5 illustrated n I gu es 1 Ire a i which the. re t ve dimensiens .qt -i emller are; changed? to exaggerate 1 heiicleara cea are 6 h w the p sitions:qfthe rgller begore he las sm l; seller h anbe n; iner indi a ing how the, miles she 3 11 a be dis l ced; t th 1 ot d in pqsition. Eig re 7 :"S e he estvsmalli ol e smarke 8", being inserted between tw o adj nceritilarge r lers While the shelllhis di nlace l i alligure' 8 shows t eim ena helli 11 re tored ,to its essen ial position and I haenreminsemd therein; thus taking up e, releeranse'i causing the series of rollers te tigghten, in the rings.

and shell a mag be constructed as shown in FignreQQ-ali 10,2 dine tightly fitted on the other and the shell having, a contracted ,end 13 (which engages; a :groove 14 in the core to lockntheflzatter against ,ae'eidental removal; Preferably thelolii'isitle I diameter of the core isuqmal' toiithe inside diameter of the 's'helL' "vbt Under some conditions,-depehding- .npon proportions, it may i be necessary. lprovide ifaeveflhmore than-two,

of the small rollers withmenmmdle cores in order to obteinthe clearance nehrlefl'lto admit the last roller inassembling- In most cases one such rolleri-will-isuificeg though as many may be provided Withspamte cores I a f ry-ihl-i .the v(the small ones. oad is'af imafiter the relation of the axes of the smallollers to the circle of centers of the Etarge rollers. nTEh'e Tn'arer The loadis transmitted principally by large rollers but partially b The proportioning of-thei the "axes: of the small: arolle'rs i are i brought to the direct line' of] thrust between ithe Icenters m of the'large rollers, the less'thei'ri load, Thus the small l rollers j f'uhction morecor less as v. .i a r ,1 1 It win he Qbsema train which is to relieve friction by providing only a momentar line contact between said 7 V e-porfiions of the end--snrfaces tithe-rollers in engagement therewith at any A liven instant; in other words, the contat"%tween the end surfaces of the rollers and the eeersugta e e cthe flanges will be along lines coinciding with the radii of both the rings and the rollers and hence only e em n ry: .CEhli aticnei the s r a r ferre it c else' 'e eats, part al resel e atheside thms in a ra i l dire i Ahpt er .i eata e edntribet ng to he d ct eu; e1; f nance s that a the rol er r c 4 is .fermetlemra se ,v or pni f ou er n lu learifigtennua dep e sio 1 t nmthe trapktan rinne ri efie 0f th flarng afitnhwh thaw/NW i herel rs tsa l it T811 htlyoat o pare l i m ith the/ax si t e b eni gi i unde s ch: cend ionsthe t nda t the roller am ng i t wi l e f eafr me eta t with e ngsi by v t e afisiwhidepress onsy i'l e me n d eribed, o permitting, as- I semh ing 0r disass mhling; a b king, he sroll rsin th r, ec i e radial, posi ns maintain the assemblvui the hearing may ,be applied to bearing; of different designe? and details of. constructionirom that shown and innhich the-numbee pic sat r c-san melatire ar an ems ioi; them e sim yf variously mo ifiedi; though I believe the mo nraoticaliarra gfiment While I have described m iuvention s gembfl ifidinga bearing, cap ab e of transmitting latera pressure or end hr t in both directions, and requiring ,the: eccentric displacement method for inserting. th bad-o sustaining rollers, the invention in its broad aspect is also applicable to; bearings adapted to sustain onlg, radial pressure, or to take end thrust inonly, pnedirection, or in which, thoughacapable-of sustaining end thrust in both directions, one or more oi the, ring flanges may bemade separable or detachable in order to permi as emhlyv 101- t r ng and loadsustaining, rollers otherwise than by ;the eccentric 1 displacement method. I As-i.

sume, for instance, that :flanges, of the inner so that the bearin cou d thrust or cou d -alie as the case may be,

of rollers would still be retainedlaterally by the outer ring. VThis arrangement would permit the inner ring to be inserted concentrically while the series of rollers; are in place, and the same result would by making one of the flanges of the inner ring separable or detachable. With such arrangements, however, it will still be de- --sirable to retain the assembling feature one or bothef the should be removed, no longer take and it only in one direction,

thoug the entire series,

isv as, illustratede be obtained,

inner surfaces described, since the relation andcondition of tightness of the rollers is such that the last small roller could not be inserted in its place between adjacent large rollers until a radial displacement of one of the small rollers is effected as previously described.

The term roller is to be understood to include other or equivalent rollingelements which may be used in bearings embodying my invention. 7

Having now described my invention, I claim:

V 1. A roller bearing comprising a pair of concentric rings and an interposed series of rollers of different sizes in a relation where by the large rollers bear on both rings and are retained laterally byat least one of them and the small rollers in rolling contact with the others, eachrhears onone ring off the track of the large rollers and is retained laterally thereby, one or more of the small rollers bein radially displaceable to obtain clearance %or the admission of the last roller in assembling, and means normally preventing such displacement.

2. A roller bearing comprising a pair of concentric rings and an interposed series of rollers of difl'erent sizes in a relation whereby the large rollers bear on both rings and are retained laterally by at leastone of them and the small rollers in rolling contact with the others, each bears on one ring oil the track of the large rollers and is retained laterally thereby, one or more of said rollers havin a separate core which retains its essential radial position to preserve the relation stated. r

3. A roller bearing comprising concentric rings and interposed rollers of different sizes in a relationwhereby the large rollers bear on and are retained laterally by both rings while the small rollers are retained laterally by said rings but are withheld by one of the rings from its. bearing track for the large rollers; one or more of the small rollers being laterally displaceable toward the track from which it is normally withheld, so as to obtain clearance for admission of the last roller in assembling; and means normally preventing such, displacement.

4. A roller bearing comprising a pair of concentric rings andan interposed series of rollers of differentsizes .inra relatiqirltw lerfir by the large rollers bear on and are retained laterally by both rin sand each of the'small rollers is retained aterally and withheld by one ring oil the track of the large rollers, one or more of said small rollers having a separate core which retains said roller in its proper relation. v

5. A roller bearing comprising rings and interposed rollers of different sizes, the large rollers travellin on and having lateral enga ment with oth rings, and thesmaller ro ers bearing on one ring off the trackof the large rollers and retained laterally thereby, one or more of the smaller rollers having separable means withholding it from the track of the large rollers and serving to maintain the bearing assembled in the relation stated. i i r S 6. A roller bearing cornprisin concentric rings and an interposed seriesp alternately large and smaller rollers, the large rollers tracking on and en aged laterally with both rings, and the sma ler rollers each bearing on one ring oil the track of the large rollers and retained laterally thereby, and separable means retaining one or more of said smaller rollers in its essential radial relation.

7. A roller bearing com rising rings and interposed rollers of di erent' sizes, the larger rollers retained laterally by both rings, each of the smaller rollers bein held radially in position for lateral retention by one of the rings, but having means contacting therewith withholding it from the roller track thereof, said means of one or more of said smaller rollers being separable to per- Init assemblage.

8. A roller bearing comprising rings and closely arranged rollers embraced thereby. including a. roller of smaller diameter than the distance between the tracks of the rings, and means for maintaining saidroller in a radial relation efi'ective to exert pressure circumferentially and tighten the series.

9. A roller bearing comprising rings and interposed rollers mutually retaining each other against axial displacement, the series including a roller smaller than others, the body of which is radially displaceable, and having an insertible core to secure it against displacement. V

10. A- roller bearing comprising concentric rings having roller tracks and flanges on their opposed faces, rollers bearing on said tracks and engaged by said flanges, smaller rollers each held radially against the flanges of one ring and retained laterally thereby, at least one of the smaller rollers having separable means to hold it in such radial relation. 11. A roller bearing comprising'concentric ringsfhaving rpl'lertracks; andflanges on their opposed faces, rollers bearing on said tracks, and engaged by said flanges, smaller rollers betweenthe others held radially againstthe flanges of one ring and retained laterally thereby, at least one of said smaller rollers having an inserted core, which maintains its radial position.

12. A roller bearing comprising concentric rings having roller tracks and flanges on their opposed faces, rollers "hearing on said. tracks and engaged'by said flanges, smaller rollers held radially in position for lateral retention by the flanges of one ring, said rollers having trunnions bearing on said flanges and withholding said rollers from the track of the larger rollers, at least one of said smaller rollers having a separate core providing its said trunnions.

13. A. roller bearing comprisin concentric rings having roller tracks and s oulders on its opposed faces, rollers of such a number as can be inserted while the rings are eccentrically displaced bearin on said tracks engaging laterally with sai shoulders, smaller rollers between the others adapted for lateral retention by the shoulders of a ring, said smaller rollers being individually insertible While the rings are concentric but in the complete assembly each occupying a position against one of the rings and in lateral retention by its shoulders but out of contact with its roller track, at. least one of the smaller rollers having a separable part which preserves its radial relation in the complete assembly.

14. A roller bearing comprising rin and rollers mutually retained in assemble relation, and means for locking the assembly including a separable roller and core, which core retains said roller in its essential radial position.

15. A bearing comprising concentric rings and an interposed series of alternating large and small rollers, the small rollers bearing upon the outer ring off the track of the large rollers and retained laterally thereby, one or more of the small rollers having an inserted core retaining it in the relation stated.

16. A bearin comprising concentric rings having opposed roller tracks and an interposed series of contacting rollers and idlers, thrust-sustaining means for retaining the rings, rollers and idlers against axial displacement, at least one of said idlers being separable for urposes of assembly.

17. A roller caring element consisting of a roller composed of a shell and separable core fitted one upon the other and having an interlocking connection.

18. A roller bearin comprising rings and interposed rollers of ifierent sizes, the large rollers traveling on and laterally engaged by both rings, and the small rollers bearing on one ring off the track of the large rollers and laterally retained thereby, the en aging) surfaces of the rings and large ro lers eing formed to restrict the contact substantially to radial lines coinciding with the radii of the rings and rollers. H 7

19. A roller bearin comprising rings and interposed rollers of ifferent sizes, the large rollers traveling on and laterally engaged by both rings, and the small rollers bearing on one ring off the track of the large rollers and laterally retained thereby, there being rovision for clearance between the ends 0 the rollers and ring retaining the small rollers to prevent jamming if the rollers get aslant or out of true arallelism.

20. A roller earing comprising concentric rings having roller tracks and flanges on their confronting faces, and rollers hearing on said tracks retained laterally by said flanges, there being annular depressions between a track and said flanges to allow disalinement of the rollers without jamming.

21. A roller bearing comprising concentric rin s, and an interposed series of alternating arge and small rollers, means retaining the small rollers in position off the bearing track of the large rollers, one or more of said small rollers bein radially displaceable toward said track to obtain clearance for the admission of the last roller in assembling, and means normally preventing such displacement.

22. A roller bearing comprising concentric rings,- and interposed rollers in two sets of difl'erent diameters, the rollers of both sets being laterally retained by at least one ring but having independent bearing tracks thereon, one or more of the smaller rollers having a separable core for purposes of assembly.

23. A hearing comprising concentric rings and closely arran d rollers embraced there by, including rol ers small enough to pass between the rings which are crowded radially into engagement by one ring but oil its track for the remaining rollers, said small rollers being releasable from such en- 7 gagement by radial displacement of one or i more of them, the latter having separate means to secure them against such displacement.

24. A method of assembling a roller-bearing of the unit-assembled type which inchides introducing between t e race-rings a number of rollers'less than the whole of a series of rollers which in a predetermined relation will maintain the assembly, those so introduced including one or more of less diameter. than the distance between the roller tracks of the rings; displacing one or more rollers of such specified diameter radially in a direction to al ow clearance and introducing the remaining roller or rollers of the said series; then restoring such displaced roller or rollers to position to eflect the predetermined relation stated and lockin the same against radial displacement there om.

25. A method of filling a roller-bearing of the unit-assembled type which consists in inserting between the race-rings while relatively dis laced a number of rollers of a diameter a apted to bear on and coact laterally with both rings when concentric, arranging the rings concentrically and separating said rollers therein, then inserting a number of smaller rollers capable individually of passing between the concentric rings. providing clearance to admit the last oftlie small rollers by crowding one or more of them toward a track of the larger rollers and, while so crowding, inserting the last of said small rollers, then moving one or more ill) of said small rollers in the opposite direction to take up the clearance and inserting means to retain the same in the essential radial position to preserve the assembly of the bearing.

26. A roller bearing comprising concentric rings, interposed rollers tracking thereon, smaller rollers between first mentioned rollers, said smaller rollers occupying a radial position for lateral retention by only one ring but off from the track thereon for the first-mentioned rollers, the closeness of the series of rollers preventin the smaller rollers from moving out of position for such lateral retention, one or more said smaller rollers being radially dis laceable toward said track to loosen the series for assembling or disassembling, and means normally preventing such displacement.

27. A roller bearing comprising concentric rin s, interposed rollers tracking thereon, sma ler rollers between first-mentioned rollers, said smaller rollers occupying a radial position for lateral retention by only one ring but off from the track thereof for the firstmentioned rollers, one or more of said smaller rollers having an inserted means which retains it in position to tighten the series of rollers suiliciently to preserve the relation stated.

28. A roller bearin comprising concentrio rings having rol er tracks, interposed rollers bearing on said tracks, flanges on the outer ring laterally embracing said rollers smaller rollers held by radial thrust toward said flan es and laterally retained thereby, there being clearance between said smaller rollers and the track of said outer ring, at least one of the said smaller rollers having inserted means to hold it in its desired radial position and thereby maintain such closeness of the series of rollers as to maintain the relation stated.

29. Aroller bearin comprising concentric rings, interposed ro lers tracking thereon, flanges on one of said rin embracing said rollers, smaller rollers hel by radial thrust in position for lateral retention by said flanges, said rollers having bearing trunnions which withhold said rollers from the track of the larger rollers, at least one of said smaller rollers having a separate core which rovides said trunmons.

30. roller bearin comprising concentric rin s and inter ose rollers, including a rol er smaller t an the space between the bearing tracks of said rmgs having separable means withholding the same from a bearing track and servin normally to maintain the assembly of the caring.

31. A roller bearing comprisin concentric rings and interposed rollers, sai rollers bein of two sets of different diameters, there being an independent track for each set of rollers, one or more of the maller rollers having a separate core which maintains such roller in its proper radial position.

32. A roller bearing comprising rings and rollers mutually retalned in assembled relation, and means for locking the assembly includin a locking element applicable to an indivi ual roller after the assembly is otherwise completed.

33. In a roller bearing comprising rings and rollers mutually retained in assembled relation, means for locking the assembly including a roller having a plurality of parts constructed to be introduced separately into the assembly.

In testimony whereof, I have signed my 0 name to this specification.

FRANK D. SHELDON. 

